Results 31 to 40 of about 957,611 (288)

Exploiting Light Polarization for Deep HDR Imaging from a Single Exposure

open access: yesSensors, 2023
In computational photography, high dynamic range (HDR) imaging refers to the family of techniques used to recover a wider range of intensity values compared to the limited range provided by standard sensors.
Mara Pistellato   +2 more
doaj   +1 more source

Single Shot High Dynamic Range Imaging Using Piecewise Linear Estimators [PDF]

open access: yes, 2014
International audienceBuilding high dynamic range (HDR) images by combining photographs captured with different exposure times present several drawbacks, such as the need for global alignment and motion estimation in order to avoid ghosting artifacts ...
Aguerrebere, Cecilia   +4 more
core   +2 more sources

High Dynamic-Range Radio-Interferometric Images at 327 MHz [PDF]

open access: yes, 2011
Radio astronomical imaging using aperture synthesis telescopes requires deconvolution of the point spread function as well as calibration of the instrumental characteristics (primary beam) and foreground (ionospheric/atmospheric) effects.
Condon   +15 more
core   +4 more sources

High-capacity watermarking of high dynamic range images [PDF]

open access: yesEURASIP Journal on Image and Video Processing, 2016
High dynamic range (HDR) imaging techniques address the need to capture the full range of color and light that the human eyes can perceive in the real world. HDR technology is becoming more and more pervasive. In fact, most of the cameras and smartphones available on the market are capable of capturing HDR images.
MAIORANA, EMANUELE, CAMPISI, PATRIZIO
openaire   +3 more sources

High-Dynamic-Range CT Reconstruction Based on Varying Tube-Voltage Imaging. [PDF]

open access: yesPLoS ONE, 2015
For complicated structural components characterized by wide X-ray attenuation ranges, the conventional computed tomography (CT) imaging using a single tube-voltage at each rotation angle cannot obtain all structural information.
Ping Chen, Yan Han, Jinxiao Pan
doaj   +1 more source

High Dynamic Range Imaging with TDC-Based CMOS SPAD Arrays

open access: yesInstruments, 2019
This paper investigates the use of image sensors based on complementary metal−oxide−semiconductor (CMOS) single-photon avalanche diodes (SPADs) in high dynamic range (HDR) imaging by combining photon counts and timestamps. The proposed method
Majid Zarghami   +3 more
doaj   +1 more source

High Dynamic Range Imaging by Perceptual Logarithmic Exposure Merging

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2015
In this paper we emphasize a similarity between the logarithmic type image processing (LTIP) model and the Naka–Rushton model of the human visual system (HVS).
Florea Corneliu   +2 more
doaj   +1 more source

Sparse signal recovery from modulo observations

open access: yesEURASIP Journal on Advances in Signal Processing, 2021
We consider the problem of reconstructing a signal from under-determined modulo observations (or measurements). This observation model is inspired by a relatively new imaging mechanism called modulo imaging, which can be used to extend the dynamic range ...
Viraj Shah, Chinmay Hegde
doaj   +1 more source

High Dynamic Range Imaging for Preserving Chromaticity Information of Architectural Heritage [PDF]

open access: yes, 2010
This proposal seeks to enhance the documentation of architectural heritage. Precise color information (i.e. chromaticity, excluding lighting effects) as an intrinsic property of materials has not been accurately documented in the scale of large surfaces
Wei Yan, Wei Yan
core   +1 more source

High Dynamic Range Imaging Technology.

open access: yes, 2017
In this lecture note, we describe high dynamic range (HDR) imaging systems; such systems are able to represent luminances of much larger brightness and, typically, also a larger range of colors than conventional standard dynamic range (SDR) imaging systems.
Artusi, Alessandro   +3 more
openaire   +3 more sources

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